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/* lspci.c - List PCI devices. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2013 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/pci.h>
#include <grub/dl.h>
#include <grub/misc.h>
#include <grub/extcmd.h>
#include <grub/env.h>
#include <grub/mm.h>
#include <grub/i18n.h>
GRUB_MOD_LICENSE ("GPLv3+");
struct iter_cxt
{
grub_uint32_t pciid_check_mask, pciid_check_value;
int bus, device, function;
int check_bus, check_device, check_function;
};
static const struct grub_arg_option options[] =
{
{0, 'd', 0, N_("Select device by vendor and device IDs."),
N_("[vendor]:[device]"), ARG_TYPE_STRING},
{0, 's', 0, N_("Select device by its position on the bus."),
N_("[bus]:[slot][.func]"), ARG_TYPE_STRING},
{0, 0, 0, 0, 0, 0}
};
static int
grub_pcidump_iter (grub_pci_device_t dev, grub_pci_id_t pciid,
void *data)
{
struct iter_cxt *ctx = data;
grub_pci_address_t addr;
int i;
if ((pciid & ctx->pciid_check_mask) != ctx->pciid_check_value)
return 0;
if (ctx->check_bus && grub_pci_get_bus (dev) != ctx->bus)
return 0;
if (ctx->check_device && grub_pci_get_device (dev) != ctx->device)
return 0;
if (ctx->check_function && grub_pci_get_function (dev) != ctx->function)
return 0;
for (i = 0; i < 256; i += 4)
{
addr = grub_pci_make_address (dev, i);
grub_printf ("%08x ", grub_pci_read (addr));
if ((i & 0xc) == 0xc)
grub_printf ("\n");
}
return 0;
}
static grub_err_t
grub_cmd_pcidump (grub_extcmd_context_t ctxt,
int argc __attribute__ ((unused)),
char **argv __attribute__ ((unused)))
{
const char *ptr;
struct iter_cxt ctx =
{
.pciid_check_value = 0,
.pciid_check_mask = 0,
.check_bus = 0,
.check_device = 0,
.check_function = 0,
.bus = 0,
.function = 0,
.device = 0
};
if (ctxt->state[0].set)
{
ptr = ctxt->state[0].arg;
ctx.pciid_check_value |= (grub_strtoul (ptr, &ptr, 16) & 0xffff);
if (grub_errno == GRUB_ERR_BAD_NUMBER)
{
grub_errno = GRUB_ERR_NONE;
ptr = ctxt->state[0].arg;
}
else
ctx.pciid_check_mask |= 0xffff;
if (grub_errno)
return grub_errno;
if (*ptr != ':')
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("missing `%c' symbol"), ':');
ptr++;
ctx.pciid_check_value |= (grub_strtoul (ptr, &ptr, 16) & 0xffff) << 16;
if (grub_errno == GRUB_ERR_BAD_NUMBER)
grub_errno = GRUB_ERR_NONE;
else
ctx.pciid_check_mask |= 0xffff0000;
}
ctx.pciid_check_value &= ctx.pciid_check_mask;
if (ctxt->state[1].set)
{
const char *optr;
ptr = ctxt->state[1].arg;
optr = ptr;
ctx.bus = grub_strtoul (ptr, &ptr, 16);
if (grub_errno == GRUB_ERR_BAD_NUMBER)
{
grub_errno = GRUB_ERR_NONE;
ptr = optr;
}
else
ctx.check_bus = 1;
if (grub_errno)
return grub_errno;
if (*ptr != ':')
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("missing `%c' symbol"), ':');
ptr++;
optr = ptr;
ctx.device = grub_strtoul (ptr, &ptr, 16);
if (grub_errno == GRUB_ERR_BAD_NUMBER)
{
grub_errno = GRUB_ERR_NONE;
ptr = optr;
}
else
ctx.check_device = 1;
if (*ptr == '.')
{
ptr++;
ctx.function = grub_strtoul (ptr, &ptr, 16);
if (grub_errno)
return grub_errno;
ctx.check_function = 1;
}
}
grub_pci_iterate (grub_pcidump_iter, &ctx);
return GRUB_ERR_NONE;
}
static grub_extcmd_t cmd;
GRUB_MOD_INIT(pcidump)
{
cmd = grub_register_extcmd ("pcidump", grub_cmd_pcidump, 0,
N_("[-s POSITION] [-d DEVICE]"),
N_("Show raw dump of the PCI configuration space."), options);
}
GRUB_MOD_FINI(pcidump)
{
grub_unregister_extcmd (cmd);
}
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